Sophia - Environmental Science - Unit 1 Challenge 2.
Sophia - Environmental Science - Unit 1 Challenge 2. 1 — Earth's Formation: History of Earth's Formation Determine the date of major events for Earth's history, according to the one-year calendar model. According to the one-year calendar model based on the Big Bang theory, which of the following events happened in September? • a.) The solar system comes into existence. • b.) The Big Bang occurs. • c.) Life appears on Earth. • d.) Homo sapiens appear on Earth. 2 — Earth's Formation: Atmosphere Conditions Differentiate between the conditions in the atmosphere before and after life formed on Earth. Some early life forms developed photosynthesis, which released free oxygen. When oxygen is impacted by UV radiation, it forms __________. • a.) ozone • b.) water • c.) oxygen • d.) sulfur dioxide 3 — Early Life Identify challenges
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sophia environmental science unit 1 challenge 2 1 — earths formation history of earths formation determine the date of major events for earths history
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according to the one year cale